/*
 * usbfs header structures
 * Copyright (C) 2007 Daniel Drake <dsd@gentoo.org>
 * Copyright (c) 2001 Johannes Erdfelt <johannes@erdfelt.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef LIBUSB_USBFS_H
#define LIBUSB_USBFS_H

#define SYSFS_DEVICE_PATH "/sys/bus/usb/devices"

struct usbfs_ctrltransfer {
    /* keep in sync with usbdevice_fs.h:usbdevfs_ctrltransfer */
    uint8_t  bmRequestType;
    uint8_t  bRequest;
    uint16_t wValue;
    uint16_t wIndex;
    uint16_t wLength;

    uint32_t timeout;    /* in milliseconds */

    /* pointer to data */
    void *data;
};

struct usbfs_bulktransfer {
    /* keep in sync with usbdevice_fs.h:usbdevfs_bulktransfer */
    unsigned int ep;
    unsigned int len;
    unsigned int timeout;    /* in milliseconds */

    /* pointer to data */
    void *data;
};

struct usbfs_setinterface {
    /* keep in sync with usbdevice_fs.h:usbdevfs_setinterface */
    unsigned int interface;
    unsigned int altsetting;
};

#define USBFS_MAXDRIVERNAME 255

struct usbfs_getdriver {
    unsigned int interface;
    char driver[USBFS_MAXDRIVERNAME + 1];
};

#define USBFS_URB_SHORT_NOT_OK        0x01
#define USBFS_URB_ISO_ASAP            0x02
#define USBFS_URB_BULK_CONTINUATION    0x04
#define USBFS_URB_QUEUE_BULK        0x10
#define USBFS_URB_ZERO_PACKET        0x40

enum usbfs_urb_type {
    USBFS_URB_TYPE_ISO = 0,
    USBFS_URB_TYPE_INTERRUPT = 1,
    USBFS_URB_TYPE_CONTROL = 2,
    USBFS_URB_TYPE_BULK = 3,
};

struct usbfs_iso_packet_desc {
    unsigned int length;
    unsigned int actual_length;
    unsigned int status;
};

#define MAX_ISO_BUFFER_LENGTH        32768
#define MAX_BULK_BUFFER_LENGTH        16384
#define MAX_CTRL_BUFFER_LENGTH        4096

struct usbfs_urb {
    unsigned char type;
    unsigned char endpoint;
    int status;
    unsigned int flags;
    void *buffer;
    int buffer_length;
    int actual_length;
    int start_frame;
    int number_of_packets;
    int error_count;
    unsigned int signr;
    void *usercontext;
    struct usbfs_iso_packet_desc iso_frame_desc[0];
};

struct usbfs_connectinfo {
    unsigned int devnum;
    unsigned char slow;
};

struct usbfs_ioctl {
    int ifno;    /* interface 0..N ; negative numbers reserved */
    int ioctl_code;    /* MUST encode size + direction of data so the
             * macros in <asm/ioctl.h> give correct values */
    void *data;    /* param buffer (in, or out) */
};

struct usbfs_hub_portinfo {
    unsigned char numports;
    unsigned char port[127];    /* port to device num mapping */
};

#define IOCTL_USBFS_CONTROL    _IOWR('U', 0, struct usbfs_ctrltransfer)
#define IOCTL_USBFS_BULK        _IOWR('U', 2, struct usbfs_bulktransfer)
#define IOCTL_USBFS_RESETEP    _IOR('U', 3, unsigned int)
#define IOCTL_USBFS_SETINTF    _IOR('U', 4, struct usbfs_setinterface)
#define IOCTL_USBFS_SETCONFIG    _IOR('U', 5, unsigned int)
#define IOCTL_USBFS_GETDRIVER    _IOW('U', 8, struct usbfs_getdriver)
#define IOCTL_USBFS_SUBMITURB    _IOR('U', 10, struct usbfs_urb)
#define IOCTL_USBFS_DISCARDURB    _IO('U', 11)
#define IOCTL_USBFS_REAPURB    _IOW('U', 12, void *)
#define IOCTL_USBFS_REAPURBNDELAY    _IOW('U', 13, void *)
#define IOCTL_USBFS_CLAIMINTF    _IOR('U', 15, unsigned int)
#define IOCTL_USBFS_RELEASEINTF    _IOR('U', 16, unsigned int)
#define IOCTL_USBFS_CONNECTINFO    _IOW('U', 17, struct usbfs_connectinfo)
#define IOCTL_USBFS_IOCTL         _IOWR('U', 18, struct usbfs_ioctl)
#define IOCTL_USBFS_HUB_PORTINFO    _IOR('U', 19, struct usbfs_hub_portinfo)
#define IOCTL_USBFS_RESET        _IO('U', 20)
#define IOCTL_USBFS_CLEAR_HALT    _IOR('U', 21, unsigned int)
#define IOCTL_USBFS_DISCONNECT    _IO('U', 22)
#define IOCTL_USBFS_CONNECT    _IO('U', 23)

#endif

